You can have the tea, but if it is caffeinated, just drink more water. That's assuming it is 0/0/0, wasn't sure what 'diet' meant - a mix?
You can have deli meat. I did, but not too often, as the nitrates are terrible for you and they usually have more fat, and sometimes some carbs, depending on what meat it is and how it is processed. You might want to ask your coach...
Some people do use the butter spray - as long as you only have the 'serving' that is 0/0/0, it should be fine.
Basically, anything you have that is not an IP packet or a vegetable, should be 0/0/0...
Started Phase 1 January 2011, Phase 2 for 4 weeks, Phase 3 for 2 weeks; started Phase 4 March 27, 2012 !!!!! Yahoo!